The steel fireproof door is relatively heavy, and has high requirements for door jambs and hinges. The steel fire door is impact resistant, and the structural strength can withstand long-term collision without reducing fire protection, and can withstand the impact of fire hydrant.

ZHTdoors protupožarna vrata, 31 godina iskustva u proizvodnji protupožarnih vrata i prozora. Glavna UL protupožarna vrata, EN protupožarna vrata, BS EN protupožarna vrata, itd. Imamo certifikate. ZHTdoors podržavaju OEM i besplatan dizajn. Naše prednosti: dobra kvaliteta, tvornička cijena, dobra usluga. Dobrodošli da nas konzultirate.